Improvement in lubricating car-axles



WILLIAM PAINTER; Lu bricatlng car Axles.

Patented Apri|!6,1872.

UNITED STATES PATENT OFFICE.

WILLIAM PAINTER, OF BALTIMORE, MARYLAND, ASSIGNOIt-OF ONE-HALF HIS RIGHTTO LEWIS R. KEIZER, OF SAME PLACE.

IMPROVEMENT IN LUBRICATING CAR-AXLES.

Specification forming part of Letters Patent No. 125,841, dated April16, 1872; antedated April 3, 1872.

I, WILLIAM PAINTER, of Baltimore, in the State of Maryland, haveinvented certain Improvements in Percussion Oilers for Railroad-OarAxles, of which the following is a specification:

My invention relates to certain devices for supplying oil to the axlesof railroad cars; and consists in the use of aperoussion-ejector,actuated by the motion of car, for throwing oil on thejournals from areservoir at the bottom of the box.

Figure 1 is a longitudinal vertical section, and Fig. 2 a top view ofthe oiler complete. Fig. 3 is a top view of the base-plate and cylinder.Fig. 4 is a modification, showing the use of a diaphragm instead of apiston and cylinder.

A is the base-plate, from which rises a cup or cylinder, B, having slotsor openings 0 (J for the admission of oil, which occupies the space inthe bottom of car-box, rising as high, with respect to the oiler-say, asline as m. Fit ting loosely in the cylinder B is a piston or plunger, D,having attached to it a disk, E, and projecting rim F, intendedprincipally to give additional weight to the plunger, and as a guide andprotection to a spiral spring, G, lying under the disk E, and supportingthe weight of the plunger and the several parts attached. Through theplunger B is an opening, H, slightly tapered at I to facilitate the exitof oil. J J are holes for the escape of air from the interior of theinverted cup, formed by rim F. K K are two lugs attached to rim F, whichlimit its upward motion by coming in contact with the shell or cover Lsurrounding it. This cover has projecting sides extending downward andfitting over base-plate A, to which it is secured by a bolt and nut, M.Through the sides of cover L are openings N N N N, for the admission ofoil to the interior.

The oiler is placed in the usual reservoir in the bottom of car-box, andupon oil being poured in it finds its way through openings 0 G and N Nto the cylinder B so long as any remains in the reservoir.

The operation may be understood by reference to the cylinder B andplunger D, supported on spring, and partially immersed in oil. When thecar to which the oiler is attached is running, the jarring motionimparted to the box causes a vertical vibratory motion of the plunger Dwithin the cylinder B, consequent on its inertia, (its weight beingcounterbalanced by the spiral spring G,) causing it to strike the oilcontained in cylinder with percussive force. Now, although there areopenings 0 O in cylinder B, through which the oil would escape shouldthe plunger be slowly depressed, yet, when its motion is sudden, aportion only escapes, the remainder being ejected upward through theopening in plunger against the journals. 0n the piston orplungerresumingits normal position, (which is at or near the center ofits extremes of vertical motion, the spiral spring beingjust strongenough to retain it there,) the vacated space is again filled with oil,and the action is repeated so long as the succession of jarring motioncontinues. The oil, on being ejected upward, strikes the journalprincipally at one point, but the longitudinal and rotary motionscombine to distribute it entirely over the surface. As much more oil isthrown upon the journal than is required, the excess finds its way backinto the reservoir, and is used over continuously. 7

Instead of a cylinder and weighted piston or plunger, counterbalanced bya spring for ejecting the oil by percussion, a flexible diaphragm ofleather or other material, 0, Fig. 4, stretched over a chamber, 1?, towhich are openings Q Q for the admission of oil, and a weight,R,counterbalanced by a spring, may be used with the same result; theobject being to expel the oil from a partially-closed chamber by thepercussive action of a weight supported by a spring, and employed eitheras a plunger working in a cylinder, or in connection with a diaphragm orother equivalent means. Therefore I do not limit myself to anyparticular construction or arrangement of parts, as they may be variedwithout in anywise aii'ecting the distinctive features of the device.

WVhat I claim as my invention is The percussion-oiler for car-axles,consisting of a weighted plunger, supported by a spring, and working ina cylinder for ejecting the oil by percussive force, substantially asdescribed.

I WILLIAM PAINTER. Witnesses: Lnwrs R. KEIZER, J osnrn E. MURRILL.

